| 摘要 |
<p>A method of processing imageable elements useful as alkaline-developable lithographic printing plate precursors that does not require either a rinsing step or a further gumming step is disclosed. The method comprises simultaneously developing and gumming the imaged element with an aqueous alkaline developing-gumming solution comprising one or more water-soluble polyhydroxy compounds of the following structure: R1(CHOH)¿NR?2 in which n is 4 to 7; and either (i) R1 is hydrogen, aryl, or CH¿2?OH; and R2 is hydrogen, alkyl group having 1 to 4 carbon atoms, CH2OR?3¿ in which R3 is hydrogen or an alkyl group having 1 to 4 carbon atoms,CH¿2N(R?4R5) in which R?4 and R5¿ are each independently hydrogen or an alkyl group having 1 to 4 carbon atoms, or CO¿2?H, or (ii)R?1 and R2¿ together form a carbon-carbon single bond.</p> |
